Author: Alessandro Scotti
Date: 06:31:33 03/07/06
Go up one level in this thread
On March 07, 2006 at 04:49:35, Uri Blass wrote: >Movei find it in a few seconds without that knowledge and it certainly has >pruning including null move pruning. > >Here is the analysis at depth 12 > >12 106 265 1659869 b3b8 h2h4 h7h5 d2g2 b8b3 g2f2 b3b7 f2d2 f6e6 d2g2 e6d5 >12 107 314 1976669 b3b7 >12 111 360 2286743 b3b7 h2h4 h7h5 d2g2 b7b8 g2f2 b8g8 e3e4 f5e4 f3e4 g8e8 e4f3 > f6f5 f2g2 >12 112 429 2811982 b3b2 >12 141 454 3042096 b3b2 >12 240 543 3690983 b3b2 d2b2 c4c3 b2b6 f6g7 b6b7 g7h6 b7b6 h6h5 b6b5 c3c2 b5f5 > h5h4 f5f6 h7h5 f6c6 d3d2 c6c2 d2d1q c2e2 >12 240 554 3778228 b3b2 d2b2 c4c3 b2b6 f6g7 b6b7 g7h6 b7b6 h6h5 b6b5 c3c2 b5f5 > h5h4 f5f6 h7h5 f6c6 d3d2 c6c2 d2d1q c2e2 Also found by Hamsters rather quickly, and Hamsters has no knowledge at all (except for material and some piece/square tables): a 8/7p/5k2/5p2/p1p2P2/Pr1pPK2/1P1R3P/8 b - - bm Rxb2 1/ 2 0:00.00 -400 3 Rxb2 Rxb2 1/ 2 0:00.00 -1 10 Rb5 1/ 5 0:00.00 2 23 Ke6 2/ 5 0:00.00 2 43 Ke6 h3 3/ 9 0:00.00 2 279 Ke6 e4 Rb5 4/ 9 0:00.00 0 632 Ke6 e4 c3 Rxd3 Rxb2 Rxc3 Rxh2 exf5+ Kxf5 5/ 9 0:00.00 0 1258 Ke6 e4 c3 Rxd3 Rxb2 Rxc3 Rxh2 exf5+ Kxf5 6/12 0:00.00 0 4541 Ke6 e4 c3 Rxd3 cxb2 exf5+ Kxf5 6/12 0:00.00 5 7460 c3 bxc3 Rxc3 Ra2 Ke6 e4 7/12 0:00.01 6 10632 c3 bxc3 Rxc3 Ra2 Ke6 h3 Kd5 8/14 0:00.02 3 19404 c3 bxc3 Rxc3 e4 Rxa3 e5+ Ke6 Ke3 Kd5 Rxd3+ Rxd3+ Kxd3 9/14 0:00.03 0 34902 c3 bxc3 Rxc3 e4 Rxa3 Ke3 fxe4 Kxe4 Ke6 Rxd3 Rxd3 Kxd3 9/17 0:00.09 1 91216 Rb7 e4 Re7 e5+ Ke6 Ke3 Kd5 h3 Rd7 h4 10/17 0:00.15 1 150202 Rb7 e4 Re7 e5+ Ke6 Ke3 Kd5 h3 Rd7 h4 Re7 11/19 0:00.29 1 284446 Rb7 e4 Re7 e5+ Ke6 Ke3 Kd5 h3 Rd7 h4 Re7 Rd1 12/22 0:00.62 1 630855 Rb7 e4 Re7 e5+ Ke6 Ke3 Kd5 Rd1 Re8 h3 Re7 h4 Re8 13/24 0:01.36 1 1370050 Rb7 e4 Re7 e5+ Ke6 Ke3 Kd5 Rd1 Re8 h3 Re7 h4 Re8 Rd2 14/25 0:03.59 5 3690965 Rb7 e4 fxe4+ Kxe4 Re7+ Kf3 Re1 Rg2 Ke6 h4 h6 Rd2 Kd5 Kg4 Re2 Rxe2 dxe2 14/26 0:04.48 260 4657423 Rxb2 Rxb2 c3 Rb6+ Kf7 Rb7+ Kg6 Rb6+ Kh5 Rf6 c2 Rxf5+ Kh4 Rf6 h5 Rd6 c1=Q Rxd3 15/30 0:05.80 366 6086702 Rxb2 Rxb2 c3 Rb6+ Ke7 Rb7+ Kd6 Rb6+ Kc5 Rb8 c2 Rc8+ Kd6 e4 d2 Rd8+ Ke7 Rxd2 c1=Q Rd3
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